[Core] Add configuration of PMW3360 lift off distance

[Xelus22]

Description

Adds the ability to set the lift off distance between the sensor and the surface.
Currently the default is set to 0x02 (please refer to the datasheet).
Using #define PMW3360_LIFTOFF_DISTANCE xxx will allow the user to set the wanted distance.

e.g. #define PMW3360_LIFTOFF_DISTANCE 0x27

Tested and working

Types of Changes

• Core
• Bugfix
• New feature
• Enhancement/optimization
• Keyboard (addition or update)
• Keymap/layout/userspace (addition or update)
• Documentation

Issues Fixed or Closed by This PR

• Add lift off distance change

Checklist

• My code follows the code style of this project: C, Python
• I have read the PR Checklist document and have made the appropriate changes.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.
• I have tested the changes and verified that they work and don't break anything (as well as I can manage).